60 Seconds

 作者:庞噬     |      日期:2019-02-27 05:10:01
Another library goes online Google’s book-scanning project has added a princely feather to its cap. Princeton University is to open up 1 million of its books, making it the 12th institution to join the project. Multicoloured snow It wasn’t quite walking in a winter wonderland, but people in the Russian provinces of Omsk, Tomsk and Novosibirsk did get yellow, green and orange snow over more than 40 square kilometres on 31 January. The colours were probably caused by dust and soil blown in from neighbouring Kazakhstan, the government said. Beating botulinum Potential antidotes have been found to botulinum neurotoxin A,